Is this true?

This sounds incredibly bizarre to me but I’m trying to learn all I can about my body. So the other day I was just scrolling away on here and I came across a post that said something about hook pregnancy tests. I could be wrong on the name but basically it’s where the test gives a false negative because you have too much of the pregnancy hormone hcg. Is that true? I’m confused. I thought if you were pregnant, regardless of how far along, the test would pick up any hcg in your system and give you a positive result... I’m sure this isn’t common but a couple of woman were posting about it and I wanted to ask everyone’s opinion on it. I’m not pregnant nor trying, I just thought this was interesting.